How to Measure the Temperature of a Supernova Bubble?

i think, yousan, there are some clues about what's going on. Like wou sould o have a rough idea of the temperature instead of these bubbles. There is a lot of discussion about that, because it's hard to measure it directly. Some people think its probably might be much colder. Other people think it might be much, much hotter. And i suspect it could even get up to millions of degrees kelvin inside that little bubble. Yes, i was just parking my cars, but apparently i've been wasting my garage space on ntendan things, supernove factory, right? Hera ha, ha, ha.